Mercurial > sdl-ios-xcode
view docs/man3/SDL_SetGammaRamp.3 @ 741:97b9c301df94
Date: Mon, 17 Nov 2003 23:12:59 +0100
From: Max Horn
Subject: SDL building "the unix way" on OS X
I just noticed that building current SDL CVS "the unix way" (using
configure/make) is (and has been for some time, it seems) broken.
That's because Sam updated to a newer libtool version, which removed my
"-framework" patches.
Attached is a patch which once again makes ltmain.sh aware of
"-framework". Note that this is simply a backport of the corresponding
changes in libtool CVS (i.e. the next libtool release will contain
those same changes).
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 18 Nov 2003 14:25:12 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
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.TH "SDL_SetGammaRamp" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" .SH "NAME" SDL_SetGammaRamp\- Sets the color gamma lookup tables for the display .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBint \fBSDL_SetGammaRamp\fP\fR(\fBUint16 *redtable, Uint16 *greentable, Uint16 *bluetable\fR); .SH "DESCRIPTION" .PP Sets the gamma lookup tables for the display for each color component\&. Each table is an array of 256 Uint16 values, representing a mapping between the input and output for that channel\&. The input is the index into the array, and the output is the 16-bit gamma value at that index, scaled to the output color precision\&. You may pass NULL to any of the channels to leave them unchanged\&. .PP This function adjusts the gamma based on lookup tables, you can also have the gamma calculated based on a "gamma function" parameter with \fISDL_SetGamma\fR\&. .PP Not all display hardware is able to change gamma\&. .SH "RETURN VALUE" .PP Returns -1 on error (or if gamma adjustment is not supported)\&. .SH "SEE ALSO" .PP \fISDL_SetGamma\fR \fISDL_GetGammaRamp\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01